High and low speed wrench



'w. F. ADAMS.

HIGH AND LOW SPEED WRENCH.-

APPLICATION FILED APR=18,192|.

1,409,510. Patented Mar..14, 1922.

lztveni'or.

FVaZt'ev EA UNITED STATES EATENT orrice.

WALTER r. ADAMS, or Los AneEnns, mmomm.

IGH Ann Low mes wnnncn.

Application filed April 18, 1921. Serial No. 462,094

and'useful High and Low Speed rench,

of which the following is a specification.

This invention is applicable to wrenches of various kinds includingsocket wrenches, screw drivers and'braces for operating bits of variouskinds, and the principle of theinvention applies more particularly tothe construction of the handle for turning the tool tip which is toengage the object to be wrenched, as a nut on a bolt, a head of a bolt,a head of a screw or the shank of a tool such as an anger or any otherform of bit.

In operating a wrench for revolving objects such as screws, nuts, bolts,etc. which have to be turned round and round on the axis by a wrench asa socket wrench or a screw driver or other device of a like character,considerable power is usually required at the beginning of the operationof loosening the parts or at the close of the opera tion of tighteningthe parts, and an object of this invention is to provide a practicalwrench brace device by which long leverage with low speed is appliedthrough one part of the appliance when considerable force is required asin seating and starting'nuts, and

for starting and inserting heavy screws, and

high speed with small leverage is available through another part of theoperation.

The invention is broadly new, basic and pioneer in that I provide awrench handle 7 practically operable after the fashion of a brace andbit, comprising an engaging end and a stationed handle co-axialtherewith connected through two handles that are ec-' centric to theaxis of the stationed handle and of different radii relative to eachother so that'when power is required, the handle of longer radius can beused, and when high speed of revolution is desired the eccentric handleof lesser radius is employed.

An object and advantage is, greater facility and speed for loosening andtightening elements that are capable of beingv loosened and tightened byrotation on an axis. 7 I 1 Other objects, advantages and features ofinvention may appear from the accompanying drawing, the subjoined detaildescription and the appended claims.v

Specificationof Letters i aten-t ,Patente'd Mai-.14, 192 2.

The accompanying drawing illustrates the invention. i i

Figure 1 "is a view of the invention applied to a conventional'brace.

Fig. 21s a, yiew analogous to Fig.1, s ing the invention as applied ina: simpler form. 1

Fig. 3 is a fragmental view showing the end of the" socket wrenchillustrated in Fig. at is a; fragmenta1' view, of a screw" driver upwhen my beem lb ed with. a"

handle constructed 'n-ac'cordance with the form shownin' Fig. 2.

The stationed handle 1 may be of any desirable, form and is shown as aknob which may or may not be swiveled on the axially extending handletip 2 of the appliance. 3 is the axially extended tool tip or terminalof said handle; said terminal may have any deslred form of tip as thechuck it, socket wrench 5 or the screw driver 6. Between the'handle tip2 and the tool tip 3, the handle is provided with two eccentric handles7 and 8 connected to said tips and to each other by the radius arms 9and 10 and the intermediate limb 11, so that when the stationed handle 1is held in position and the wrenching'device is engaged with the objectto be turned; it considerable power is required for turning thewrenching device,

as at the'starting of a nut or bolt or the In practical operation thehandle will be I held after the manner of the ordinary brace and bit,the knob or stationed axial handle 1 being held true, with the toolengaging the nut, screw or other part to be revolved.

great power by grasping the high power handle 8 and swinging it aroundand around as with the use of an ordinary brace and bit.

When it, is feasible to spin or rapidly relvolve the element beingturned, the high speed handle7 of shorter radius is revolved. This canbe done with high speed, thus v greatly facilitating the wor The axes ofthe eccentric handlesare par- 7 allel to the axis of the tips 2 and 3 ofsaid lThe tool may be turned slowly and with appliance. Both radius arms9 and 10 preferably are located on the same side of the axis of the tips2 and 3 and the handle 7 of shorter radius is between the stationedhandle 1 and the handle 8 of greater radius, so that in practical usethe handle of less radius does not interfere with the operation of thehandle of greater radius.

The eccentric handles 7 and 8 may or may not be provided with grips'?and 8 journaled thereon.

By mounting both handles on the same side of the unitary axis of thetips 2 and 3, the tool is given a practical condensed form and is verysimple in construction and operation.

I claim:

1. A wrench handle comprising two coaxial tips and intermediateeccentric handles, the axes of which are parallel to the axis of thetips; said parallel handles being connected together and with the tipsby radius arms of difierent lengths.

4- A revolving wrench having two 00- axial. tips and a plurality ofintermediate eccentric handles having radii of different length, andconnected to saidtips by radius arms.

In testimony whereof, I have hereunto set my hand at Los Angeles,California, this 9th day of April, 1921. e

WALTERF. ADAMS. Witness: I

JAMns R. TOWNSEND.

